QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0Md

5 km ESE of Naranjito, Puerto Rico

· 64 km deep · released about 950 lb of TNT

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10 km30 km60 km120 km N Naranjito Municipio 6 kmComerío Municipio 6 kmAguas Buenas Municipio 7 kmBayamón Municipio 8 kmToa Alta Municipio 11 kmGuaynabo Municipio 11 kmCidra Municipio 12 kmCorozal Municipio 14 kmBarranquitas Municipio 15 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 3.0 (Md)
Depth
64 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Naranjito Municipio, 6 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3582 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

Where

Epicentre 18.2777, -66.1940. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Naranjito Municipio, PR 6 km (4 mi) ESE of here earthquakes near Naranjito Municipio
Comerío Municipio, PR 6 km (4 mi) NNE of here earthquakes near Comerío Municipio
Aguas Buenas Municipio, PR 7 km (5 mi) WNW of here earthquakes near Aguas Buenas Municipio
Bayamón Municipio, PR 8 km (5 mi) SSW of here earthquakes near Bayamón Municipio
Toa Alta Municipio, PR 11 km (7 mi) SSE of here earthquakes near Toa Alta Municipio
Guaynabo Municipio, PR 11 km (7 mi) SW of here earthquakes near Guaynabo Municipio

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

22 earthquakes have been recorded within 50 km since this one.

  1. 2.4 4 km ESE of Villalba, Puerto Rico
  2. 2.7 1 km WNW of Potala Pastillo, Puerto Rico
  3. 2.4 3 km NNW of Jagual, Puerto Rico
  4. 2.5 7 km NNW of Trujillo Alto, Puerto Rico
  5. 3.0 5 km SE of Pájaros, Puerto Rico
  6. 2.6 4 km S of G. L. Garcia, Puerto Rico
  7. 2.5 Puerto Rico region
  8. 3.9 6 km WNW of Aguas Buenas, Puerto Rico
  9. 2.0 0 km SSW of Las Ollas, Puerto Rico
  10. 2.3 6 km N of Yaurel, Puerto Rico
  11. 2.2 6 km N of Yaurel, Puerto Rico
  12. 3.0 5 km NNW of Yaurel, Puerto Rico
  13. 3.0 5 km SSE of G. L. Garcia, Puerto Rico
  14. 2.5 5 km NNW of Yaurel, Puerto Rico
  15. 3.0 5 km SSE of G. L. Garcia, Puerto Rico

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.